A woman with normal BRCA alleles has a child with a man who has one mutated BRCA1 allele.What is the probability that the child will have a mutated BRCA1 allele?

Question

Quizplus · Accepted Answer

Each parent contributes one allele to their child, so the child will receive one normal allele from the mother and either a normal or mutated allele from the father. Therefore, the probability is 50% for the child to inherit the mutated BRCA1 allele.

A Woman with Normal BRCA Alleles Has a Child with a Man